八大行星中，木星是最大的。

Jupiter is the largest among the eight planets.

八大行星的轨道各不相同。

The orbits of the eight planets are different from each other.

八大行星是太阳系的主要成员。

The eight planets are the main members of the solar system.

八大行星中，地球是唯一有生命的星球。

Among the eight planets, Earth is the only one with life.

八大行星的发现是天文学的重大成就。

The discovery of the eight planets is a major achievement in astronomy.

地球是八大行星之一。

The earth is one of the eight Planets.

太阳系中的八大行星都沿着同一方向在被叫作黄道面(这一平面与太阳赤道面形成微小的夹角)运行。

The eight planets of our solar system orbit in the same direction along what's called the ecliptic, a flat plane that's nearly aligned with the sun's equator.

太阳系包含八大行星。

The solar system includes eight planets.

太阳系八大行星中直径最大的？

Are middle the solar system eight major planets diameters maximal?

所以新模型我们太阳系有八大行星.

So the new model of our solar system has eight classical planets.